Documentary Filmmaker Dave Riggs and his crew, who tagged a large number of great white sharks off the coasts of Bremer Bay in Australia, encountered something very unusual.

One of the tags of a large shark was discovered washed up on shore.

The tag had no signs of algae, but instead appeared to have been heavily bleach by stomach acid.

Using satellite tracking, they were able to pin point the exact time the shark was mysterious attacked and eaten.

-Why this is mysterious

This is mysterious for 2 reasons

1.) The data showed the tag taking a sudden 1902 foot drop down the continental shelf which indicated that the shark had just become prey to something big and very fast.

2.) After further examination, it was revealed that the tag had been ingested by an animal with an internal temperate of around 78 degrees Fahrenheit, 32 degrees higher than
than the great white's normal temperature.

-Plausible Explainations?

Some people suggested that it could have been an orca, they are certainly large enough, with the biggest on record being 32 feet long and they have been known to hunt
great white sharks, however, the problem with this theory is that killer whales generally stay near the surface and the deepest an orca has ever been recorded was 850 feet
while this unknown creature was nearly 2,000 feet deep.

Another theory was that the tag may have somehow been removed from the shark. However, the trouble with this explanation is that
great white sharks body temperature is significantly warmer than the surrounding water, so if the tag had been removed the tracker would have to have picked up a sudden drop in temperature, which
which, it did not.

So could another larger great white shark have been the culprit? Not likely because of the temperate shift.

The temperate of the tag while in the muscle tissue is about 8 degrees warmer than the cold ocean water.
-Recorded Tag Temperature 46F
-Water Temperature 38F
The temperature of a great white shark's belly will range between 13-25 degrees warmer than the surrounding waters.

So this would indicate a temperature between 52 degrees with a maximum of 64 degrees.
The temperature of whatever unknown sea animal that ate the tagged shark was at 78 degrees.